61507066 has 16 divisors (see below), whose sum is σ = 97272000. Its totient is φ = 29088288.

The previous prime is 61507049. The next prime is 61507091. The reversal of 61507066 is 66070516.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39091 + ... + 40633.

It is an arithmetic number, because the mean of its divisors is an integer number (6079500).

Almost surely, 2^61507066 is an apocalyptic number.

61507066 is a deficient number, since it is larger than the sum of its proper divisors (35764934).

61507066 is a wasteful number, since it uses less digits than its factorization.

61507066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 61507066 is about 7842.6440694449. The cubic root of 61507066 is about 394.7374551863.

The spelling of 61507066 in words is "sixty-one million, five hundred seven thousand, sixty-six".