1630612065 has 32 divisors (see below), whose sum is σ = 2631436416. Its totient is φ = 862202880.

The previous prime is 1630612043. The next prime is 1630612127. The reversal of 1630612065 is 5602160361.

It is not a de Polignac number, because 1630612065 - 2⁵ = 1630612033 is a prime.

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, 1850425 + ... + 1851305.

It is an arithmetic number, because the mean of its divisors is an integer number (82232388).

Almost surely, 2^1630612065 is an apocalyptic number.

1630612065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630612065 is a deficient number, since it is larger than the sum of its proper divisors (1000824351).

1630612065 is a wasteful number, since it uses less digits than its factorization.

1630612065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1630612065 is about 40380.8378442053. The cubic root of 1630612065 is about 1177.0192086013.

The spelling of 1630612065 in words is "one billion, six hundred thirty million, six hundred twelve thousand, sixty-five".