2126656464 has 40 divisors (see below), whose sum is σ = 5510501472. Its totient is φ = 706738560.

The previous prime is 2126656459. The next prime is 2126656487. The reversal of 2126656464 is 4646566212.

It is a congruent number.

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, 51039 + ... + 82814.

Almost surely, 2^2126656464 is an apocalyptic number.

2126656464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2126656464 is an abundant number, since it is smaller than the sum of its proper divisors (3383845008).

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

2126656464 is a wasteful number, since it uses less digits than its factorization.

2126656464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134195 (or 134189 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 2126656464 is about 46115.6856611717. The cubic root of 2126656464 is about 1285.9747662435.

The spelling of 2126656464 in words is "two billion, one hundred twenty-six million, six hundred fifty-six thousand, four hundred sixty-four".