155651061101 has 16 divisors (see below), whose sum is σ = 166460098560. Its totient is φ = 145219253760.

The previous prime is 155651061091. The next prime is 155651061119. The reversal of 155651061101 is 101160156551.

It is a cyclic number.

It is not a de Polignac number, because 155651061101 - 2⁶ = 155651061037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155651061191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476396 + ... + 733658.

It is an arithmetic number, because the mean of its divisors is an integer number (10403756160).

Almost surely, 2^155651061101 is an apocalyptic number.

It is an amenable number.

155651061101 is a deficient number, since it is larger than the sum of its proper divisors (10809037459).

155651061101 is a wasteful number, since it uses less digits than its factorization.

155651061101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257996.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 155651061101 in words is "one hundred fifty-five billion, six hundred fifty-one million, sixty-one thousand, one hundred one".