113661477399 has 8 divisors (see below), whose sum is σ = 159524880640. Its totient is φ = 71786196216.

The previous prime is 113661477389. The next prime is 113661477427. The reversal of 113661477399 is 993774166311.

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

It is not a de Polignac number, because 113661477399 - 2⁷ = 113661477271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 1994061007 = 113661477399 / (1 + 1 + 3 + 6 + 6 + 1 + 4 + 7 + 7 + 3 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113661477389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997030447 + ... + 997030560.

It is an arithmetic number, because the mean of its divisors is an integer number (19940610080).

Almost surely, 2^113661477399 is an apocalyptic number.

113661477399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

113661477399 is a deficient number, since it is larger than the sum of its proper divisors (45863403241).

113661477399 is a wasteful number, since it uses less digits than its factorization.

113661477399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994061029.

The product of its digits is 5143824, while the sum is 57.

The spelling of 113661477399 in words is "one hundred thirteen billion, six hundred sixty-one million, four hundred seventy-seven thousand, three hundred ninety-nine".