61178333345 has 8 divisors (see below), whose sum is σ = 73415682600. Its totient is φ = 48941544960.

The previous prime is 61178333323. The next prime is 61178333399. The reversal of 61178333345 is 54333387116.

It can be written as a sum of positive squares in 4 ways, for example, as 20671538176 + 40506795169 = 143776^2 + 201263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61178333345 - 2³⁴ = 43998464161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61178333296 and 61178333305.

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, 157055 + ... + 383435.

It is an arithmetic number, because the mean of its divisors is an integer number (9176960325).

Almost surely, 2^61178333345 is an apocalyptic number.

It is an amenable number.

61178333345 is a deficient number, since it is larger than the sum of its proper divisors (12237349255).

61178333345 is a wasteful number, since it uses less digits than its factorization.

61178333345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280435.

The product of its digits is 544320, while the sum is 44.

The spelling of 61178333345 in words is "sixty-one billion, one hundred seventy-eight million, three hundred thirty-three thousand, three hundred forty-five".