20513074153 has 12 divisors (see below), whose sum is σ = 24231691728. Its totient is φ = 17213766960.

The previous prime is 20513074129. The next prime is 20513074181. The reversal of 20513074153 is 35147031502.

It is a happy number.

It is not a de Polignac number, because 20513074153 - 2¹³ = 20513065961 is a prime.

It is a super-2 number, since 2×20513074153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20513074103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5515375 + ... + 5519092.

It is an arithmetic number, because the mean of its divisors is an integer number (2019307644).

Almost surely, 2^20513074153 is an apocalyptic number.

It is an amenable number.

20513074153 is a deficient number, since it is larger than the sum of its proper divisors (3718617575).

20513074153 is a wasteful number, since it uses less digits than its factorization.

20513074153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034504 (or 11034491 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 20513074153 in words is "twenty billion, five hundred thirteen million, seventy-four thousand, one hundred fifty-three".