61662315 has 128 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 24330240.

The previous prime is 61662299. The next prime is 61662329. The reversal of 61662315 is 51326616.

It is not a de Polignac number, because 61662315 - 2⁴ = 61662299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 692791 + ... + 692879.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^61662315 is an apocalyptic number.

61662315 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61662315 is an abundant number, since it is smaller than the sum of its proper divisors (68974485).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61662315 is a wasteful number, since it uses less digits than its factorization.

61662315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its digits is 6480, while the sum is 30.

The square root of 61662315 is about 7852.5355777609. The cubic root of 61662315 is about 395.0692929763.

The spelling of 61662315 in words is "sixty-one million, six hundred sixty-two thousand, three hundred fifteen".