755921165940 has 192 divisors, whose sum is σ = 2429264517120. Its totient is φ = 194944112640.

The previous prime is 755921165939. The next prime is 755921165999. The reversal of 755921165940 is 49561129557.

755921165940 is a `hidden beast` number, since 7 + 5 + 592 + 1 + 1 + 6 + 5 + 9 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25982682 + ... + 26011758.

It is an arithmetic number, because the mean of its divisors is an integer number (12652419360).

Almost surely, 2^755921165940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 755921165940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1214632258560).

755921165940 is an abundant number, since it is smaller than the sum of its proper divisors (1673343351180).

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

755921165940 is a wasteful number, since it uses less digits than its factorization.

755921165940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30679 (or 30671 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 54.

The spelling of 755921165940 in words is "seven hundred fifty-five billion, nine hundred twenty-one million, one hundred sixty-five thousand, nine hundred forty".