61506100146 has 16 divisors (see below), whose sum is σ = 125872949664. Its totient is φ = 20025241824.

The previous prime is 61506100111. The next prime is 61506100199. The reversal of 61506100146 is 64100160516.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119197611 + ... + 119198126.

It is an arithmetic number, because the mean of its divisors is an integer number (7867059354).

Almost surely, 2^61506100146 is an apocalyptic number.

61506100146 is an abundant number, since it is smaller than the sum of its proper divisors (64366849518).

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

61506100146 is a wasteful number, since it uses less digits than its factorization.

61506100146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238395785.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 61506100146 in words is "sixty-one billion, five hundred six million, one hundred thousand, one hundred forty-six".