63264251301661 has 8 divisors (see below), whose sum is σ = 63361558962720. Its totient is φ = 63166944942192.

The previous prime is 63264251301649. The next prime is 63264251301677. The reversal of 63264251301661 is 16610315246236.

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 63264251301661 - 2²¹ = 63264249204509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63264251301161) 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, 150844510 + ... + 151263328.

It is an arithmetic number, because the mean of its divisors is an integer number (7920194870340).

Almost surely, 2^{63264251301661} is an apocalyptic number.

It is an amenable number.

63264251301661 is a deficient number, since it is larger than the sum of its proper divisors (97307661059).

63264251301661 is a wasteful number, since it uses less digits than its factorization.

63264251301661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650795.

The product of its (nonzero) digits is 933120, while the sum is 46.

Adding to 63264251301661 its reverse (16610315246236), we get a palindrome (79874566547897).

The spelling of 63264251301661 in words is "sixty-three trillion, two hundred sixty-four billion, two hundred fifty-one million, three hundred one thousand, six hundred sixty-one".