1663312470 has 32 divisors (see below), whose sum is σ = 4226771808. Its totient is φ = 417458688.

The previous prime is 1663312439. The next prime is 1663312489. The reversal of 1663312470 is 742133661.

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, 1630189 + ... + 1631208.

It is an arithmetic number, because the mean of its divisors is an integer number (132086619).

Almost surely, 2^1663312470 is an apocalyptic number.

1663312470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663312470 is an abundant number, since it is smaller than the sum of its proper divisors (2563459338).

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

1663312470 is a wasteful number, since it uses less digits than its factorization.

1663312470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261424.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 1663312470 is about 40783.7280051738. The cubic root of 1663312470 is about 1184.8351993575.

The spelling of 1663312470 in words is "one billion, six hundred sixty-three million, three hundred twelve thousand, four hundred seventy".