1663150401663 has 32 divisors (see below), whose sum is σ = 2317382344704. Its totient is φ = 1060063200000.

The previous prime is 1663150401659. The next prime is 1663150401769. The reversal of 1663150401663 is 3661040513661.

It is not a de Polignac number, because 1663150401663 - 2² = 1663150401659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663150401623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1624338 + ... + 2442288.

It is an arithmetic number, because the mean of its divisors is an integer number (72418198272).

Almost surely, 2^{1663150401663} is an apocalyptic number.

1663150401663 is a deficient number, since it is larger than the sum of its proper divisors (654231943041).

1663150401663 is a wasteful number, since it uses less digits than its factorization.

1663150401663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818327.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 1663150401663 in words is "one trillion, six hundred sixty-three billion, one hundred fifty million, four hundred one thousand, six hundred sixty-three".