10920255644 has 12 divisors (see below), whose sum is σ = 19133730168. Its totient is φ = 5453475600.

The previous prime is 10920255637. The next prime is 10920255653. The reversal of 10920255644 is 44655202901.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 10920255598 and 10920255607.

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, 1659362 + ... + 1665929.

It is an arithmetic number, because the mean of its divisors is an integer number (1594477514).

Almost surely, 2^10920255644 is an apocalyptic number.

It is an amenable number.

10920255644 is a deficient number, since it is larger than the sum of its proper divisors (8213474524).

10920255644 is a wasteful number, since it uses less digits than its factorization.

10920255644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326116 (or 3326114 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 10920255644 in words is "ten billion, nine hundred twenty million, two hundred fifty-five thousand, six hundred forty-four".