20070455660 has 24 divisors (see below), whose sum is σ = 42151166736. Its totient is φ = 8027570880.

The previous prime is 20070455627. The next prime is 20070455711. The reversal of 20070455660 is 6655407002.

It is a self number, because there is not a number n which added to its sum of digits gives 20070455660.

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, 307070 + ... + 366650.

It is an arithmetic number, because the mean of its divisors is an integer number (1756298614).

Almost surely, 2^20070455660 is an apocalyptic number.

20070455660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20070455660 is an abundant number, since it is smaller than the sum of its proper divisors (22080711076).

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

20070455660 is a wasteful number, since it uses less digits than its factorization.

20070455660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76433 (or 76431 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 20070455660 in words is "twenty billion, seventy million, four hundred fifty-five thousand, six hundred sixty".