64298060661 has 4 divisors (see below), whose sum is σ = 85730747552. Its totient is φ = 42865373772.

The previous prime is 64298060641. The next prime is 64298060681. The reversal of 64298060661 is 16606089246.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (64298060641) and next prime (64298060681).

It is not a de Polignac number, because 64298060661 - 2¹⁷ = 64297929589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64298060661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64298060611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10716343441 + ... + 10716343446.

It is an arithmetic number, because the mean of its divisors is an integer number (21432686888).

Almost surely, 2^64298060661 is an apocalyptic number.

It is an amenable number.

64298060661 is a deficient number, since it is larger than the sum of its proper divisors (21432686891).

64298060661 is a wasteful number, since it uses less digits than its factorization.

64298060661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21432686890.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 64298060661 in words is "sixty-four billion, two hundred ninety-eight million, sixty thousand, six hundred sixty-one".