1636041045 has 16 divisors (see below), whose sum is σ = 2660579712. Its totient is φ = 858250560.

The previous prime is 1636040993. The next prime is 1636041067. The reversal of 1636041045 is 5401406361.

It is not a de Polignac number, because 1636041045 - 2⁸ = 1636040789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893097 + ... + 894926.

It is an arithmetic number, because the mean of its divisors is an integer number (166286232).

Almost surely, 2^1636041045 is an apocalyptic number.

1636041045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1636041045 is a deficient number, since it is larger than the sum of its proper divisors (1024538667).

1636041045 is a wasteful number, since it uses less digits than its factorization.

1636041045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788092.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1636041045 is about 40448.0042152885. The cubic root of 1636041045 is about 1178.3240223590.

The spelling of 1636041045 in words is "one billion, six hundred thirty-six million, forty-one thousand, forty-five".