125662776408 has 256 divisors, whose sum is σ = 403490505600. Its totient is φ = 35891527680.

The previous prime is 125662776401. The next prime is 125662776433. The reversal of 125662776408 is 804677266521.

It is a happy number.

125662776408 is a `hidden beast` number, since 1 + 2 + 5 + 6 + 627 + 7 + 6 + 4 + 0 + 8 = 666.

It is a super-2 number, since 2×125662776408² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125662776401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3466698 + ... + 3502758.

Almost surely, 2^125662776408 is an apocalyptic number.

125662776408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125662776408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201745252800).

125662776408 is an abundant number, since it is smaller than the sum of its proper divisors (277827729192).

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

125662776408 is a wasteful number, since it uses less digits than its factorization.

125662776408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36179 (or 36169 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 125662776408 in words is "one hundred twenty-five billion, six hundred sixty-two million, seven hundred seventy-six thousand, four hundred eight".