61006155332 has 6 divisors (see below), whose sum is σ = 106760771838. Its totient is φ = 30503077664.

The previous prime is 61006155323. The next prime is 61006155337. The reversal of 61006155332 is 23355160016.

It can be written as a sum of positive squares in only one way, i.e., 47274065476 + 13732089856 = 217426^2 + 117184^2 .

It is a super-2 number, since 2×61006155332² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61006155337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7625769413 + ... + 7625769420.

It is an arithmetic number, because the mean of its divisors is an integer number (17793461973).

Almost surely, 2^61006155332 is an apocalyptic number.

It is an amenable number.

61006155332 is a deficient number, since it is larger than the sum of its proper divisors (45754616506).

61006155332 is a wasteful number, since it uses less digits than its factorization.

61006155332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15251538837 (or 15251538835 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 61006155332 in words is "sixty-one billion, six million, one hundred fifty-five thousand, three hundred thirty-two".