61805295150 has 24 divisors (see below), whose sum is σ = 153277132344. Its totient is φ = 16481412000.

The previous prime is 61805295137. The next prime is 61805295161. The reversal of 61805295150 is 5159250816.

It is a happy number.

It is a super-2 number, since 2×61805295150² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206017501 + ... + 206017800.

It is an arithmetic number, because the mean of its divisors is an integer number (6386547181).

Almost surely, 2^61805295150 is an apocalyptic number.

61805295150 is an abundant number, since it is smaller than the sum of its proper divisors (91471837194).

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

61805295150 is a wasteful number, since it uses less digits than its factorization.

61805295150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412035316 (or 412035311 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 42.

The spelling of 61805295150 in words is "sixty-one billion, eight hundred five million, two hundred ninety-five thousand, one hundred fifty".