20154306536 has 32 divisors (see below), whose sum is σ = 46509939840. Its totient is φ = 7973131968.

The previous prime is 20154306527. The next prime is 20154306559. The reversal of 20154306536 is 63560345102.

It is a junction number, because it is equal to n+sod(n) for n = 20154306496 and 20154306505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13841516 + ... + 13842971.

It is an arithmetic number, because the mean of its divisors is an integer number (1453435620).

Almost surely, 2^20154306536 is an apocalyptic number.

20154306536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20154306536 is an abundant number, since it is smaller than the sum of its proper divisors (26355633304).

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

20154306536 is a wasteful number, since it uses less digits than its factorization.

20154306536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27684513 (or 27684509 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20154306536 in words is "twenty billion, one hundred fifty-four million, three hundred six thousand, five hundred thirty-six".