1664364086 has 48 divisors (see below), whose sum is σ = 3245517072. Its totient is φ = 632620800.

The previous prime is 1664364067. The next prime is 1664364103. The reversal of 1664364086 is 6804634661.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 25370 + ... + 63026.

It is an arithmetic number, because the mean of its divisors is an integer number (67614939).

Almost surely, 2^1664364086 is an apocalyptic number.

1664364086 is a deficient number, since it is larger than the sum of its proper divisors (1581152986).

1664364086 is a wasteful number, since it uses less digits than its factorization.

1664364086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37725 (or 37718 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 1664364086 is about 40796.6185608562. The cubic root of 1664364086 is about 1185.0848476103.

The spelling of 1664364086 in words is "one billion, six hundred sixty-four million, three hundred sixty-four thousand, eighty-six".