75630144001561 has 8 divisors (see below), whose sum is σ = 79610802091200. Its totient is φ = 71649498331440.

The previous prime is 75630144001553. The next prime is 75630144001571. The reversal of 75630144001561 is 16510044103657.

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

It is a cyclic number.

It is not a de Polignac number, because 75630144001561 - 2³ = 75630144001553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75630144001571) 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, 11049420 + ... + 16533298.

It is an arithmetic number, because the mean of its divisors is an integer number (9951350261400).

Almost surely, 2^{75630144001561} is an apocalyptic number.

It is an amenable number.

75630144001561 is a deficient number, since it is larger than the sum of its proper divisors (3980658089639).

75630144001561 is a wasteful number, since it uses less digits than its factorization.

75630144001561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209759.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 75630144001561 in words is "seventy-five trillion, six hundred thirty billion, one hundred forty-four million, one thousand, five hundred sixty-one".