64116651 has 8 divisors (see below), whose sum is σ = 88436880. Its totient is φ = 41270432.

The previous prime is 64116641. The next prime is 64116653. The reversal of 64116651 is 15661146.

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 64116651 - 2¹⁵ = 64083883 is a prime.

It is a super-2 number, since 2×64116651² = 8221889870911602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64116653) 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, 368400 + ... + 368573.

It is an arithmetic number, because the mean of its divisors is an integer number (11054610).

Almost surely, 2^64116651 is an apocalyptic number.

64116651 is a deficient number, since it is larger than the sum of its proper divisors (24320229).

64116651 is a wasteful number, since it uses less digits than its factorization.

64116651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737005.

The product of its digits is 4320, while the sum is 30.

The square root of 64116651 is about 8007.2873683914. The cubic root of 64116651 is about 400.2428754157.

Adding to 64116651 its reverse (15661146), we get a palindrome (79777797).

It can be divided in two parts, 6 and 4116651, that multiplied together give a triangular number (24699906 = T₇₀₂₈).

The spelling of 64116651 in words is "sixty-four million, one hundred sixteen thousand, six hundred fifty-one".