75156216311461 has 4 divisors (see below), whose sum is σ = 76989294758124. Its totient is φ = 73323137864800.

The previous prime is 75156216311447. The next prime is 75156216311497. The reversal of 75156216311461 is 16411361265157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22932902346561 + 52223313964900 = 4788831^2 + 7226570^2 .

It is a cyclic number.

It is not a de Polignac number, because 75156216311461 - 2¹⁷ = 75156216180389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75156216311161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916539223270 + ... + 916539223351.

It is an arithmetic number, because the mean of its divisors is an integer number (19247323689531).

Almost surely, 2^{75156216311461} is an apocalyptic number.

It is an amenable number.

75156216311461 is a deficient number, since it is larger than the sum of its proper divisors (1833078446663).

75156216311461 is a wasteful number, since it uses less digits than its factorization.

75156216311461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833078446662.

The product of its digits is 907200, while the sum is 49.

The spelling of 75156216311461 in words is "seventy-five trillion, one hundred fifty-six billion, two hundred sixteen million, three hundred eleven thousand, four hundred sixty-one".