153511955121 has 16 divisors (see below), whose sum is σ = 235031625728. Its totient is φ = 87305374800.

The previous prime is 153511955087. The next prime is 153511955131. The reversal of 153511955121 is 121559115351.

It is not a de Polignac number, because 153511955121 - 2¹⁵ = 153511922353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 153511955121.

It is not an unprimeable number, because it can be changed into a prime (153511955131) 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, 17318065 + ... + 17326926.

It is an arithmetic number, because the mean of its divisors is an integer number (14689476608).

Almost surely, 2^153511955121 is an apocalyptic number.

It is an amenable number.

153511955121 is a deficient number, since it is larger than the sum of its proper divisors (81519670607).

153511955121 is a wasteful number, since it uses less digits than its factorization.

153511955121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34645212.

The product of its digits is 33750, while the sum is 39.

The spelling of 153511955121 in words is "one hundred fifty-three billion, five hundred eleven million, nine hundred fifty-five thousand, one hundred twenty-one".