126533670840 has 48 divisors (see below), whose sum is σ = 411234431400. Its totient is φ = 33742312128.

The previous prime is 126533670839. The next prime is 126533670847. The reversal of 126533670840 is 48076335621.

126533670840 is a `hidden beast` number, since 1 + 2 + 6 + 533 + 6 + 70 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126533670847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175740850 + ... + 175741569.

Almost surely, 2^126533670840 is an apocalyptic number.

126533670840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126533670840 is an abundant number, since it is smaller than the sum of its proper divisors (284700760560).

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

126533670840 is a wasteful number, since it uses less digits than its factorization.

126533670840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351482436 (or 351482429 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 126533670840 in words is "one hundred twenty-six billion, five hundred thirty-three million, six hundred seventy thousand, eight hundred forty".