20372377666425 has 48 divisors (see below), whose sum is σ = 34207739231232. Its totient is φ = 10696954521600.

The previous prime is 20372377666423. The next prime is 20372377666453. The reversal of 20372377666425 is 52466677327302.

It is a happy number.

It is not a de Polignac number, because 20372377666425 - 2¹ = 20372377666423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20372377666423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5941174 + ... + 8720223.

It is an arithmetic number, because the mean of its divisors is an integer number (712661233984).

Almost surely, 2^{20372377666425} is an apocalyptic number.

20372377666425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20372377666425 is a deficient number, since it is larger than the sum of its proper divisors (13835361564807).

20372377666425 is a wasteful number, since it uses less digits than its factorization.

20372377666425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14661698 (or 14661693 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 60.

The spelling of 20372377666425 in words is "twenty trillion, three hundred seventy-two billion, three hundred seventy-seven million, six hundred sixty-six thousand, four hundred twenty-five".