101155317538661 has 8 divisors (see below), whose sum is σ = 101180947966560. Its totient is φ = 101129689348272.

The previous prime is 101155317538633. The next prime is 101155317538673. The reversal of 101155317538661 is 166835713551101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101155317538661 - 2⁴⁶ = 30786573360997 is a prime.

It is a super-2 number, since 2×101155317538661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101155317538861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91794206 + ... + 92889648.

It is an arithmetic number, because the mean of its divisors is an integer number (12647618495820).

Almost surely, 2^{101155317538661} is an apocalyptic number.

It is an amenable number.

101155317538661 is a deficient number, since it is larger than the sum of its proper divisors (25630427899).

101155317538661 is a wasteful number, since it uses less digits than its factorization.

101155317538661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118755.

The product of its (nonzero) digits is 2268000, while the sum is 53.

The spelling of 101155317538661 in words is "one hundred one trillion, one hundred fifty-five billion, three hundred seventeen million, five hundred thirty-eight thousand, six hundred sixty-one".