2177020345 has 8 divisors (see below), whose sum is σ = 2612756160. Its totient is φ = 1741395120.

The previous prime is 2177020333. The next prime is 2177020369. The reversal of 2177020345 is 5430207712.

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

It is not a de Polignac number, because 2177020345 - 2¹⁵ = 2176987577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24666 + ... + 70444.

It is an arithmetic number, because the mean of its divisors is an integer number (326594520).

Almost surely, 2^2177020345 is an apocalyptic number.

It is an amenable number.

2177020345 is a deficient number, since it is larger than the sum of its proper divisors (435735815).

2177020345 is an equidigital number, since it uses as much as digits as its factorization.

2177020345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55295.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2177020345 is about 46658.5506097221. The cubic root of 2177020345 is about 1296.0472330830.

The spelling of 2177020345 in words is "two billion, one hundred seventy-seven million, twenty thousand, three hundred forty-five".