20878008023608 has 16 divisors (see below), whose sum is σ = 39150938234880. Its totient is φ = 10437757827648.

The previous prime is 20878008023597. The next prime is 20878008023641. The reversal of 20878008023608 is 80632080087802.

It is a congruent number.

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, 155701816 + ... + 155835847.

It is an arithmetic number, because the mean of its divisors is an integer number (2446933639680).

Almost surely, 2^{20878008023608} is an apocalyptic number.

It is an amenable number.

20878008023608 is a deficient number, since it is larger than the sum of its proper divisors (18272930211272).

20878008023608 is a wasteful number, since it uses less digits than its factorization.

20878008023608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311546046 (or 311546042 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 20878008023608 in words is "twenty trillion, eight hundred seventy-eight billion, eight million, twenty-three thousand, six hundred eight".