1656345315 has 16 divisors (see below), whose sum is σ = 2664032256. Its totient is φ = 878757600.

The previous prime is 1656345307. The next prime is 1656345323. The reversal of 1656345315 is 5135436561.

It is an interprime number because it is at equal distance from previous prime (1656345307) and next prime (1656345323).

It is not a de Polignac number, because 1656345315 - 2³ = 1656345307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286201 + ... + 291930.

It is an arithmetic number, because the mean of its divisors is an integer number (166502016).

Almost surely, 2^1656345315 is an apocalyptic number.

1656345315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1656345315 is a deficient number, since it is larger than the sum of its proper divisors (1007686941).

1656345315 is a wasteful number, since it uses less digits than its factorization.

1656345315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578330.

The product of its digits is 162000, while the sum is 39.

The square root of 1656345315 is about 40698.2225041832. Note that the first 3 decimals coincide. The cubic root of 1656345315 is about 1183.1785687081.

The spelling of 1656345315 in words is "one billion, six hundred fifty-six million, three hundred forty-five thousand, three hundred fifteen".