75555577657660 has 24 divisors (see below), whose sum is σ = 162536632914096. Its totient is φ = 29485103475840.

The previous prime is 75555577657649. The next prime is 75555577657663. The reversal of 75555577657660 is 6675677555557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75555577657663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46070473362 + ... + 46070475001.

It is an arithmetic number, because the mean of its divisors is an integer number (6772359704754).

Almost surely, 2^{75555577657660} is an apocalyptic number.

It is an amenable number.

75555577657660 is an abundant number, since it is smaller than the sum of its proper divisors (86981055256436).

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

75555577657660 is a wasteful number, since it uses less digits than its factorization.

75555577657660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92140948413 (or 92140948411 counting only the distinct ones).

The product of its (nonzero) digits is 8103375000, while the sum is 76.

The spelling of 75555577657660 in words is "seventy-five trillion, five hundred fifty-five billion, five hundred seventy-seven million, six hundred fifty-seven thousand, six hundred sixty".