61443177134416 has 40 divisors (see below), whose sum is σ = 148421181132864. Its totient is φ = 23938900181760.

The previous prime is 61443177134411. The next prime is 61443177134431.

61443177134416 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×61443177134416² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61443177134411) 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, 24936353125 + ... + 24936355588.

Almost surely, 2^{61443177134416} is an apocalyptic number.

It is an amenable number.

61443177134416 is an abundant number, since it is smaller than the sum of its proper divisors (86978003998448).

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

61443177134416 is a wasteful number, since it uses less digits than its factorization.

61443177134416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49872708739 (or 49872708733 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The spelling of 61443177134416 in words is "sixty-one trillion, four hundred forty-three billion, one hundred seventy-seven million, one hundred thirty-four thousand, four hundred sixteen".