126621607670 has 16 divisors (see below), whose sum is σ = 237828411360. Its totient is φ = 48446528064.

The previous prime is 126621607669. The next prime is 126621607687. The reversal of 126621607670 is 76706126621.

126621607670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 275264135 + ... + 275264594.

It is an arithmetic number, because the mean of its divisors is an integer number (14864275710).

Almost surely, 2^126621607670 is an apocalyptic number.

126621607670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126621607670 is a deficient number, since it is larger than the sum of its proper divisors (111206803690).

126621607670 is a wasteful number, since it uses less digits than its factorization.

126621607670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550528759.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 126621607670 in words is "one hundred twenty-six billion, six hundred twenty-one million, six hundred seven thousand, six hundred seventy".