20760562990 has 16 divisors (see below), whose sum is σ = 39335803920. Its totient is φ = 7867160640.

The previous prime is 20760562981. The next prime is 20760562997. The reversal of 20760562990 is 9926506702.

It is a self number, because there is not a number n which added to its sum of digits gives 20760562990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20760562997) 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, 54632871 + ... + 54633250.

It is an arithmetic number, because the mean of its divisors is an integer number (2458487745).

Almost surely, 2^20760562990 is an apocalyptic number.

20760562990 is a deficient number, since it is larger than the sum of its proper divisors (18575240930).

20760562990 is a wasteful number, since it uses less digits than its factorization.

20760562990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109266147.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 20760562990 in words is "twenty billion, seven hundred sixty million, five hundred sixty-two thousand, nine hundred ninety".