64661054 has 4 divisors (see below), whose sum is σ = 96991584. Its totient is φ = 32330526.

The previous prime is 64661053. The next prime is 64661057. The reversal of 64661054 is 45016646.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64661054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64661053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16165262 + ... + 16165265.

It is an arithmetic number, because the mean of its divisors is an integer number (24247896).

Almost surely, 2^64661054 is an apocalyptic number.

64661054 is a deficient number, since it is larger than the sum of its proper divisors (32330530).

64661054 is a wasteful number, since it uses less digits than its factorization.

64661054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32330529.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64661054 is about 8041.2097348596. The cubic root of 64661054 is about 401.3724811857.

The spelling of 64661054 in words is "sixty-four million, six hundred sixty-one thousand, fifty-four".