64498080669 has 12 divisors (see below), whose sum is σ = 94526113248. Its totient is φ = 39089745640.

The previous prime is 64498080611. The next prime is 64498080737. The reversal of 64498080669 is 96608089446.

64498080669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64498080669 - 2⁷ = 64498080541 is a prime.

It is a super-2 number, since 2×64498080669² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64498080469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88839969 + ... + 88840694.

It is an arithmetic number, because the mean of its divisors is an integer number (7877176104).

Almost surely, 2^64498080669 is an apocalyptic number.

It is an amenable number.

64498080669 is a deficient number, since it is larger than the sum of its proper divisors (30028032579).

64498080669 is a wasteful number, since it uses less digits than its factorization.

64498080669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177680688 (or 177680677 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 64498080669 in words is "sixty-four billion, four hundred ninety-eight million, eighty thousand, six hundred sixty-nine".