1663000957 has 8 divisors (see below), whose sum is σ = 1672830720. Its totient is φ = 1653195600.

The previous prime is 1663000951. The next prime is 1663000961. The reversal of 1663000957 is 7590003661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1663000957 - 2³ = 1663000949 is a prime.

It is a pancake number, because a pancake can be divided into 1663000957 parts by 57671 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663000951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140832 + ... + 152182.

It is an arithmetic number, because the mean of its divisors is an integer number (209103840).

Almost surely, 2^1663000957 is an apocalyptic number.

It is an amenable number.

1663000957 is a deficient number, since it is larger than the sum of its proper divisors (9829763).

1663000957 is a wasteful number, since it uses less digits than its factorization.

1663000957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 1663000957 is about 40779.9087419283. The cubic root of 1663000957 is about 1184.7612275656.

The spelling of 1663000957 in words is "one billion, six hundred sixty-three million, nine hundred fifty-seven", and thus it is an aban number.