125668926690 has 16 divisors (see below), whose sum is σ = 301605424128. Its totient is φ = 33511713776.

The previous prime is 125668926683. The next prime is 125668926707. The reversal of 125668926690 is 96629866521.

It is a happy number.

It is a super-2 number, since 2×125668926690² (a number of 23 digits) contains 22 as substring.

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, 2094482082 + ... + 2094482141.

It is an arithmetic number, because the mean of its divisors is an integer number (18850339008).

Almost surely, 2^125668926690 is an apocalyptic number.

125668926690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125668926690 is an abundant number, since it is smaller than the sum of its proper divisors (175936497438).

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

125668926690 is a wasteful number, since it uses less digits than its factorization.

125668926690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188964233.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 125668926690 in words is "one hundred twenty-five billion, six hundred sixty-eight million, nine hundred twenty-six thousand, six hundred ninety".