20146755564 has 96 divisors (see below), whose sum is σ = 59210816000. Its totient is φ = 5872730688.

The previous prime is 20146755523. The next prime is 20146755581. The reversal of 20146755564 is 46555764102.

20146755564 is a `hidden beast` number, since 2 + 0 + 14 + 6 + 75 + 5 + 564 = 666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 350944 + ... + 404295.

Almost surely, 2^20146755564 is an apocalyptic number.

It is an amenable number.

20146755564 is an abundant number, since it is smaller than the sum of its proper divisors (39064060436).

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

20146755564 is a wasteful number, since it uses less digits than its factorization.

20146755564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755284 (or 755276 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 20146755564 in words is "twenty billion, one hundred forty-six million, seven hundred fifty-five thousand, five hundred sixty-four".