125641632264 has 32 divisors (see below), whose sum is σ = 315475728000. Its totient is φ = 41697657792.

The previous prime is 125641632241. The next prime is 125641632271. The reversal of 125641632264 is 462236146521.

It is a happy 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, 11424784 + ... + 11435775.

It is an arithmetic number, because the mean of its divisors is an integer number (9858616500).

Almost surely, 2^125641632264 is an apocalyptic number.

It is an amenable number.

125641632264 is an abundant number, since it is smaller than the sum of its proper divisors (189834095736).

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

125641632264 is a wasteful number, since it uses less digits than its factorization.

125641632264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22860797 (or 22860793 counting only the distinct ones).

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

Adding to 125641632264 its reverse (462236146521), we get a palindrome (587877778785).

The spelling of 125641632264 in words is "one hundred twenty-five billion, six hundred forty-one million, six hundred thirty-two thousand, two hundred sixty-four".