20101556014 has 24 divisors (see below), whose sum is σ = 31206286800. Its totient is φ = 9710269440.

The previous prime is 20101556009. The next prime is 20101556047. The reversal of 20101556014 is 41065510102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20101556014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317262 + ... + 375310.

It is an arithmetic number, because the mean of its divisors is an integer number (1300261950).

Almost surely, 2^20101556014 is an apocalyptic number.

20101556014 is a deficient number, since it is larger than the sum of its proper divisors (11104730786).

20101556014 is a wasteful number, since it uses less digits than its factorization.

20101556014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58236 (or 58195 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 20101556014 in words is "twenty billion, one hundred one million, five hundred fifty-six thousand, fourteen".