20536154012 has 24 divisors (see below), whose sum is σ = 39945113712. Its totient is φ = 9158489600.

The previous prime is 20536153991. The next prime is 20536154017. The reversal of 20536154012 is 21045163502.

It is a super-2 number, since 2×20536154012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20536154017) 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, 4400789 + ... + 4405452.

It is an arithmetic number, because the mean of its divisors is an integer number (1664379738).

Almost surely, 2^20536154012 is an apocalyptic number.

20536154012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20536154012 is a deficient number, since it is larger than the sum of its proper divisors (19408959700).

20536154012 is a wasteful number, since it uses less digits than its factorization.

20536154012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806309 (or 8806307 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 20536154012 in words is "twenty billion, five hundred thirty-six million, one hundred fifty-four thousand, twelve".