61015101506 has 16 divisors (see below), whose sum is σ = 96923785464. Its totient is φ = 28707819264.

The previous prime is 61015101491. The next prime is 61015101529. The reversal of 61015101506 is 60510151016.

It can be written as a sum of positive squares in 4 ways, for example, as 56994400225 + 4020701281 = 238735^2 + 63409^2 .

It is a super-2 number, since 2×61015101506² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33476 + ... + 350928.

Almost surely, 2^61015101506 is an apocalyptic number.

61015101506 is a deficient number, since it is larger than the sum of its proper divisors (35908683958).

61015101506 is a wasteful number, since it uses less digits than its factorization.

61015101506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323125.

The product of its (nonzero) digits is 900, while the sum is 26.

It can be divided in two parts, 6101510 and 1506, that added together give a palindrome (6103016).

The spelling of 61015101506 in words is "sixty-one billion, fifteen million, one hundred one thousand, five hundred six".