65061566 has 4 divisors (see below), whose sum is σ = 97592352. Its totient is φ = 32530782.

The previous prime is 65061559. The next prime is 65061571. The reversal of 65061566 is 66516056.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16265390 + ... + 16265393.

It is an arithmetic number, because the mean of its divisors is an integer number (24398088).

Almost surely, 2^65061566 is an apocalyptic number.

65061566 is a deficient number, since it is larger than the sum of its proper divisors (32530786).

65061566 is a wasteful number, since it uses less digits than its factorization.

65061566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32530785.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 65061566 is about 8066.0750058501. The cubic root of 65061566 is about 402.1994793918.

The spelling of 65061566 in words is "sixty-five million, sixty-one thousand, five hundred sixty-six".