61172560001167 has 4 divisors (see below), whose sum is σ = 61172577938176. Its totient is φ = 61172542064160.

The previous prime is 61172560001143. The next prime is 61172560001237. The reversal of 61172560001167 is 76110006527116.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61172560001167 - 2³¹ = 61170412517519 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 (61172560001767) 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, 2098938 + ... + 11258359.

It is an arithmetic number, because the mean of its divisors is an integer number (15293144484544).

Almost surely, 2^{61172560001167} is an apocalyptic number.

61172560001167 is a deficient number, since it is larger than the sum of its proper divisors (17937009).

61172560001167 is a wasteful number, since it uses less digits than its factorization.

61172560001167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937008.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 61172560001167 in words is "sixty-one trillion, one hundred seventy-two billion, five hundred sixty million, one thousand, one hundred sixty-seven".