1970642173665 has 32 divisors (see below), whose sum is σ = 3504565719936. Its totient is φ = 937435266560.

The previous prime is 1970642173553. The next prime is 1970642173769. The reversal of 1970642173665 is 5663712460791.

It is not a de Polignac number, because 1970642173665 - 2¹⁵ = 1970642140897 is a prime.

It is a super-3 number, since 3×1970642173665³ (a number of 38 digits) contains 333 as substring.

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, 112663764 + ... + 112681253.

It is an arithmetic number, because the mean of its divisors is an integer number (109517678748).

Almost surely, 2^{1970642173665} is an apocalyptic number.

1970642173665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1970642173665 is a deficient number, since it is larger than the sum of its proper divisors (1533923546271).

1970642173665 is a wasteful number, since it uses less digits than its factorization.

1970642173665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225345089.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 1970642173665 in words is "one trillion, nine hundred seventy billion, six hundred forty-two million, one hundred seventy-three thousand, six hundred sixty-five".