20154153120 has 96 divisors (see below), whose sum is σ = 64683505152. Its totient is φ = 5273029632.

The previous prime is 20154153091. The next prime is 20154153139. The reversal of 20154153120 is 2135145102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 370672 + ... + 421551.

It is an arithmetic number, because the mean of its divisors is an integer number (673786512).

Almost surely, 2^20154153120 is an apocalyptic number.

20154153120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20154153120 is an abundant number, since it is smaller than the sum of its proper divisors (44529352032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20154153120 is a wasteful number, since it uses less digits than its factorization.

20154153120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792294 (or 792286 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20154153120 its reverse (2135145102), we get a palindrome (22289298222).

The spelling of 20154153120 in words is "twenty billion, one hundred fifty-four million, one hundred fifty-three thousand, one hundred twenty".