162973777512 has 128 divisors (see below), whose sum is σ = 506145024000. Its totient is φ = 42580332288.

The previous prime is 162973777501. The next prime is 162973777523. The reversal of 162973777512 is 215777379261.

It is an interprime number because it is at equal distance from previous prime (162973777501) and next prime (162973777523).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115012 + ... + 582387.

It is an arithmetic number, because the mean of its divisors is an integer number (3954258000).

Almost surely, 2^162973777512 is an apocalyptic number.

162973777512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162973777512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253072512000).

162973777512 is an abundant number, since it is smaller than the sum of its proper divisors (343171246488).

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

162973777512 is a wasteful number, since it uses less digits than its factorization.

162973777512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697535 (or 697531 counting only the distinct ones).

The product of its digits is 7779240, while the sum is 57.

The spelling of 162973777512 in words is "one hundred sixty-two billion, nine hundred seventy-three million, seven hundred seventy-seven thousand, five hundred twelve".