1640466147 has 16 divisors (see below), whose sum is σ = 2248501248. Its totient is φ = 1063460160.

The previous prime is 1640466133. The next prime is 1640466167. The reversal of 1640466147 is 7416640461.

1640466147 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1640466147 - 2⁷ = 1640466019 is a prime.

It is a super-2 number, since 2×1640466147² = 5382258358906051218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1640466127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37203 + ... + 68300.

It is an arithmetic number, because the mean of its divisors is an integer number (140531328).

Almost surely, 2^1640466147 is an apocalyptic number.

1640466147 is a deficient number, since it is larger than the sum of its proper divisors (608035101).

1640466147 is a wasteful number, since it uses less digits than its factorization.

1640466147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105650.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 1640466147 is about 40502.6683935762. The cubic root of 1640466147 is about 1179.3854280808.

The spelling of 1640466147 in words is "one billion, six hundred forty million, four hundred sixty-six thousand, one hundred forty-seven".