146127721657 has 8 divisors (see below), whose sum is σ = 149975128800. Its totient is φ = 142329326304.

The previous prime is 146127721651. The next prime is 146127721697. The reversal of 146127721657 is 756127721641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146127721657 is a prime.

It is a super-2 number, since 2×146127721657² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146127721657.

It is not an unprimeable number, because it can be changed into a prime (146127721651) 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, 12246907 + ... + 12258832.

It is an arithmetic number, because the mean of its divisors is an integer number (18746891100).

Almost surely, 2^146127721657 is an apocalyptic number.

It is an amenable number.

146127721657 is a deficient number, since it is larger than the sum of its proper divisors (3847407143).

146127721657 is an equidigital number, since it uses as much as digits as its factorization.

146127721657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24505895.

The product of its digits is 987840, while the sum is 49.

The spelling of 146127721657 in words is "one hundred forty-six billion, one hundred twenty-seven million, seven hundred twenty-one thousand, six hundred fifty-seven".