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23155125166361 = 172311343806231
BaseRepresentation
bin1010100001111001110010…
…00000101010000100011001
310000222121102111002201111202
411100330321000222010121
511013333144020310421
6121125152340203545
74606621405314146
oct520747100520431
9100877374081452
1023155125166361
11741804055a241
12271b7506995b5
13cbc6991372b6
145a09dd4693cd
152a24b80d710b
hex150f3902a119

23155125166361 has 4 divisors (see below), whose sum is σ = 23156468989824. Its totient is φ = 23153781342900.

The previous prime is 23155125166343. The next prime is 23155125166363. The reversal of 23155125166361 is 16366152155132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23155125166361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23155125166363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671885885 + ... + 671920346.

It is an arithmetic number, because the mean of its divisors is an integer number (5789117247456).

Almost surely, 223155125166361 is an apocalyptic number.

It is an amenable number.

23155125166361 is a deficient number, since it is larger than the sum of its proper divisors (1343823463).

23155125166361 is a wasteful number, since it uses less digits than its factorization.

23155125166361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343823462.

The product of its digits is 972000, while the sum is 47.

The spelling of 23155125166361 in words is "twenty-three trillion, one hundred fifty-five billion, one hundred twenty-five million, one hundred sixty-six thousand, three hundred sixty-one".

Divisors: 1 17231 1343806231 23155125166361