75661445102 has 8 divisors (see below), whose sum is σ = 113544887616. Its totient is φ = 37813149232.

The previous prime is 75661445011. The next prime is 75661445129. The reversal of 75661445102 is 20154416657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 75661445102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8781278 + ... + 8789889.

It is an arithmetic number, because the mean of its divisors is an integer number (14193110952).

Almost surely, 2^75661445102 is an apocalyptic number.

75661445102 is a deficient number, since it is larger than the sum of its proper divisors (37883442514).

75661445102 is a wasteful number, since it uses less digits than its factorization.

75661445102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17573322.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 75661445102 in words is "seventy-five billion, six hundred sixty-one million, four hundred forty-five thousand, one hundred two".