20152044554 has 16 divisors (see below), whose sum is σ = 30629481792. Its totient is φ = 9942909408.

The previous prime is 20152044551. The next prime is 20152044569. The reversal of 20152044554 is 45544025102.

It is a super-2 number, since 2×20152044554² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20152044554.

It is not an unprimeable number, because it can be changed into a prime (20152044551) 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, 114539 + ... + 231134.

It is an arithmetic number, because the mean of its divisors is an integer number (1914342612).

Almost surely, 2^20152044554 is an apocalyptic number.

20152044554 is a deficient number, since it is larger than the sum of its proper divisors (10477437238).

20152044554 is a wasteful number, since it uses less digits than its factorization.

20152044554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346061.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 20152044554 its reverse (45544025102), we get a palindrome (65696069656).

The spelling of 20152044554 in words is "twenty billion, one hundred fifty-two million, forty-four thousand, five hundred fifty-four".