57437147661 has 8 divisors (see below), whose sum is σ = 77141863104. Its totient is φ = 38011932000.

The previous prime is 57437147633. The next prime is 57437147683. The reversal of 57437147661 is 16674173475.

57437147661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57437147661 - 2¹³ = 57437139469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57437147861) 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, 69874465 + ... + 69875286.

It is an arithmetic number, because the mean of its divisors is an integer number (9642732888).

Almost surely, 2^57437147661 is an apocalyptic number.

It is an amenable number.

57437147661 is a deficient number, since it is larger than the sum of its proper divisors (19704715443).

57437147661 is a wasteful number, since it uses less digits than its factorization.

57437147661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139749891.

The product of its digits is 2963520, while the sum is 51.

The spelling of 57437147661 in words is "fifty-seven billion, four hundred thirty-seven million, one hundred forty-seven thousand, six hundred sixty-one".