64266537 has 8 divisors (see below), whose sum is σ = 86235136. Its totient is φ = 42571152.

The previous prime is 64266533. The next prime is 64266547. The reversal of 64266537 is 73566246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64266537 - 2² = 64266533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64266495 and 64266504.

It is not an unprimeable number, because it can be changed into a prime (64266533) 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, 67753 + ... + 68694.

It is an arithmetic number, because the mean of its divisors is an integer number (10779392).

Almost surely, 2^64266537 is an apocalyptic number.

It is an amenable number.

64266537 is a deficient number, since it is larger than the sum of its proper divisors (21968599).

64266537 is a wasteful number, since it uses less digits than its factorization.

64266537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136607.

The product of its digits is 181440, while the sum is 39.

The square root of 64266537 is about 8016.6412542910. The cubic root of 64266537 is about 400.5545163405.

The spelling of 64266537 in words is "sixty-four million, two hundred sixty-six thousand, five hundred thirty-seven".