1640150355 has 32 divisors (see below), whose sum is σ = 2746658304. Its totient is φ = 834172416.

The previous prime is 1640150321. The next prime is 1640150383. The reversal of 1640150355 is 5530510461.

It is not a de Polignac number, because 1640150355 - 2⁷ = 1640150227 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, 109212 + ... + 123318.

It is an arithmetic number, because the mean of its divisors is an integer number (85833072).

Almost surely, 2^1640150355 is an apocalyptic number.

1640150355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1640150355 is a deficient number, since it is larger than the sum of its proper divisors (1106507949).

1640150355 is a wasteful number, since it uses less digits than its factorization.

1640150355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1640150355 is about 40498.7697961308. The cubic root of 1640150355 is about 1179.3097454494.

The spelling of 1640150355 in words is "one billion, six hundred forty million, one hundred fifty thousand, three hundred fifty-five".