20345375602 has 4 divisors (see below), whose sum is σ = 30518063406. Its totient is φ = 10172687800.

The previous prime is 20345375597. The next prime is 20345375621. The reversal of 20345375602 is 20657354302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20343031641 + 2343961 = 142629^2 + 1531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086343899 + ... + 5086343902.

Almost surely, 2^20345375602 is an apocalyptic number.

20345375602 is a deficient number, since it is larger than the sum of its proper divisors (10172687804).

20345375602 is a wasteful number, since it uses less digits than its factorization.

20345375602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172687803.

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 20345375602 in words is "twenty billion, three hundred forty-five million, three hundred seventy-five thousand, six hundred two".