20746001666610 has 96 divisors (see below), whose sum is σ = 59141901753792. Its totient is φ = 5003804077440.

The previous prime is 20746001666581. The next prime is 20746001666629. The reversal of 20746001666610 is 1666610064702.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52991664 + ... + 53381723.

It is an arithmetic number, because the mean of its divisors is an integer number (616061476602).

Almost surely, 2^{20746001666610} is an apocalyptic number.

20746001666610 is an abundant number, since it is smaller than the sum of its proper divisors (38395900087182).

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

20746001666610 is a wasteful number, since it uses less digits than its factorization.

20746001666610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106373608 (or 106373605 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20746001666610 in words is "twenty trillion, seven hundred forty-six billion, one million, six hundred sixty-six thousand, six hundred ten".