160978977072 has 80 divisors (see below), whose sum is σ = 463646678880. Its totient is φ = 53476478208.

The previous prime is 160978977023. The next prime is 160978977077. The reversal of 160978977072 is 270779879061.

It is not an unprimeable number, because it can be changed into a prime (160978977077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509323 + ... + 762474.

It is an arithmetic number, because the mean of its divisors is an integer number (5795583486).

Almost surely, 2^160978977072 is an apocalyptic number.

160978977072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

160978977072 is an abundant number, since it is smaller than the sum of its proper divisors (302667701808).

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

160978977072 is a wasteful number, since it uses less digits than its factorization.

160978977072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272107 (or 1272095 counting only the distinct ones).

The product of its (nonzero) digits is 18670176, while the sum is 63.

It can be divided in two parts, 1609789 and 77072, that added together give a palindrome (1686861).

The spelling of 160978977072 in words is "one hundred sixty billion, nine hundred seventy-eight million, nine hundred seventy-seven thousand, seventy-two".