20645654602 has 8 divisors (see below), whose sum is σ = 30974289696. Its totient is φ = 10320891372.

The previous prime is 20645654599. The next prime is 20645654621.

20645654602 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954598 + ... + 975985.

It is an arithmetic number, because the mean of its divisors is an integer number (3871786212).

Almost surely, 2^20645654602 is an apocalyptic number.

20645654602 is a deficient number, since it is larger than the sum of its proper divisors (10328635094).

20645654602 is a wasteful number, since it uses less digits than its factorization.

20645654602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935932.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 20645654602 in words is "twenty billion, six hundred forty-five million, six hundred fifty-four thousand, six hundred two".