165143772046 has 16 divisors (see below), whose sum is σ = 281984623488. Its totient is φ = 71801639800.

The previous prime is 165143772037. The next prime is 165143772071. The reversal of 165143772046 is 640277341561.

It is a super-2 number, since 2×165143772046² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 165143771987 and 165143772005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163185040 + ... + 163186051.

It is an arithmetic number, because the mean of its divisors is an integer number (17624038968).

Almost surely, 2^165143772046 is an apocalyptic number.

165143772046 is a deficient number, since it is larger than the sum of its proper divisors (116840851442).

165143772046 is a wasteful number, since it uses less digits than its factorization.

165143772046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326371127.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 165143772046 in words is "one hundred sixty-five billion, one hundred forty-three million, seven hundred seventy-two thousand, forty-six".