170420103957 has 4 divisors (see below), whose sum is σ = 227226805280. Its totient is φ = 113613402636.

The previous prime is 170420103929. The next prime is 170420103989. The reversal of 170420103957 is 759301024071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 170420103957 - 2³⁴ = 153240234773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170420103157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28403350657 + ... + 28403350662.

It is an arithmetic number, because the mean of its divisors is an integer number (56806701320).

Almost surely, 2^170420103957 is an apocalyptic number.

It is an amenable number.

170420103957 is a deficient number, since it is larger than the sum of its proper divisors (56806701323).

170420103957 is an equidigital number, since it uses as much as digits as its factorization.

170420103957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56806701322.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 170420103957 in words is "one hundred seventy billion, four hundred twenty million, one hundred three thousand, nine hundred fifty-seven".