61115151010 has 16 divisors (see below), whose sum is σ = 111243310200. Its totient is φ = 24171385216.

The previous prime is 61115150963. The next prime is 61115151047. The reversal of 61115151010 is 1015151116.

It can be written as a sum of positive squares in 4 ways, for example, as 40692168729 + 20422982281 = 201723^2 + 142909^2 .

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, 34333465 + ... + 34335244.

Almost surely, 2^61115151010 is an apocalyptic number.

61115151010 is a deficient number, since it is larger than the sum of its proper divisors (50128159190).

61115151010 is a wasteful number, since it uses less digits than its factorization.

61115151010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68668805.

The product of its (nonzero) digits is 150, while the sum is 22.

The spelling of 61115151010 in words is "sixty-one billion, one hundred fifteen million, one hundred fifty-one thousand, ten".