20152054155 has 16 divisors (see below), whose sum is σ = 32251726080. Its totient is φ = 10744949088.

The previous prime is 20152054129. The next prime is 20152054171. The reversal of 20152054155 is 55145025102.

It is not a de Polignac number, because 20152054155 - 2¹⁵ = 20152021387 is a prime.

It is a super-2 number, since 2×20152054155² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115945 + ... + 231834.

It is an arithmetic number, because the mean of its divisors is an integer number (2015732880).

Almost surely, 2^20152054155 is an apocalyptic number.

20152054155 is a deficient number, since it is larger than the sum of its proper divisors (12099671925).

20152054155 is a wasteful number, since it uses less digits than its factorization.

20152054155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351650.

The product of its (nonzero) digits is 10000, while the sum is 30.

Adding to 20152054155 its reverse (55145025102), we get a palindrome (75297079257).

The spelling of 20152054155 in words is "twenty billion, one hundred fifty-two million, fifty-four thousand, one hundred fifty-five".