126604453632 has 72 divisors (see below), whose sum is σ = 341568416784. Its totient is φ = 41623363584.

The previous prime is 126604453631. The next prime is 126604453663. The reversal of 126604453632 is 236354406621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126604453631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073043 + ... + 1185170.

Almost surely, 2^126604453632 is an apocalyptic number.

126604453632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126604453632 is an abundant number, since it is smaller than the sum of its proper divisors (214963963152).

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

126604453632 is an equidigital number, since it uses as much as digits as its factorization.

126604453632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258305 (or 2258291 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 126604453632 in words is "one hundred twenty-six billion, six hundred four million, four hundred fifty-three thousand, six hundred thirty-two".