57661423210 has 16 divisors (see below), whose sum is σ = 107138644992. Its totient is φ = 22320550800.

The previous prime is 57661423201. The next prime is 57661423217. The reversal of 57661423210 is 1232416675.

It is a self number, because there is not a number n which added to its sum of digits gives 57661423210.

It is not an unprimeable number, because it can be changed into a prime (57661423217) 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, 93001986 + ... + 93002605.

It is an arithmetic number, because the mean of its divisors is an integer number (6696165312).

Almost surely, 2^57661423210 is an apocalyptic number.

57661423210 is a deficient number, since it is larger than the sum of its proper divisors (49477221782).

57661423210 is a wasteful number, since it uses less digits than its factorization.

57661423210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186004629.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 57661423210 its reverse (1232416675), we get a palindrome (58893839885).

The spelling of 57661423210 in words is "fifty-seven billion, six hundred sixty-one million, four hundred twenty-three thousand, two hundred ten".