601161661664 has 48 divisors (see below), whose sum is σ = 1250262352080. Its totient is φ = 283747322880.

The previous prime is 601161661663. The next prime is 601161661687. The reversal of 601161661664 is 466166161106.

It is a happy number.

601161661664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×601161661664² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601161661663) 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, 1588499 + ... + 1930194.

It is an arithmetic number, because the mean of its divisors is an integer number (26047132335).

Almost surely, 2^601161661664 is an apocalyptic number.

It is an amenable number.

601161661664 is an abundant number, since it is smaller than the sum of its proper divisors (649100690416).

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

601161661664 is a wasteful number, since it uses less digits than its factorization.

601161661664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519003 (or 3518995 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 601161661664 in words is "six hundred one billion, one hundred sixty-one million, six hundred sixty-one thousand, six hundred sixty-four".