10655012420 has 24 divisors (see below), whose sum is σ = 24096720984. Its totient is φ = 3934158336.

The previous prime is 10655012353. The next prime is 10655012437. The reversal of 10655012420 is 2421055601.

It can be written as a sum of positive squares in 4 ways, for example, as 7661824 + 10647350596 = 2768^2 + 103186^2 .

It is a super-2 number, since 2×10655012420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 10655012420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20490149 + ... + 20490668.

It is an arithmetic number, because the mean of its divisors is an integer number (1004030041).

Almost surely, 2^10655012420 is an apocalyptic number.

10655012420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10655012420 is an abundant number, since it is smaller than the sum of its proper divisors (13441708564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10655012420 is a wasteful number, since it uses less digits than its factorization.

10655012420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40980839 (or 40980837 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 10655012420 in words is "ten billion, six hundred fifty-five million, twelve thousand, four hundred twenty".