1640129150 has 48 divisors (see below), whose sum is σ = 3409188048. Its totient is φ = 581856000.

The previous prime is 1640129131. The next prime is 1640129167. The reversal of 1640129150 is 519210461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13817 + ... + 58916.

It is an arithmetic number, because the mean of its divisors is an integer number (71024751).

Almost surely, 2^1640129150 is an apocalyptic number.

1640129150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1640129150 is an abundant number, since it is smaller than the sum of its proper divisors (1769058898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1640129150 is a wasteful number, since it uses less digits than its factorization.

1640129150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72797 (or 72792 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1640129150 is about 40498.5079972090. The cubic root of 1640129150 is about 1179.3046631164.

The spelling of 1640129150 in words is "one billion, six hundred forty million, one hundred twenty-nine thousand, one hundred fifty".