56161666101 has 8 divisors (see below), whose sum is σ = 74885892480. Its totient is φ = 37439275232.

The previous prime is 56161666019. The next prime is 56161666117. The reversal of 56161666101 is 10166616165.

56161666101 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 a cyclic number.

It is not a de Polignac number, because 56161666101 - 2¹⁷ = 56161535029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56161666101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56163666101) 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, 385821 + ... + 511058.

It is an arithmetic number, because the mean of its divisors is an integer number (9360736560).

Almost surely, 2^56161666101 is an apocalyptic number.

It is an amenable number.

56161666101 is a deficient number, since it is larger than the sum of its proper divisors (18724226379).

56161666101 is a wasteful number, since it uses less digits than its factorization.

56161666101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917755.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 56161666101 in words is "fifty-six billion, one hundred sixty-one million, six hundred sixty-six thousand, one hundred one".