42661033515 has 12 divisors (see below), whose sum is σ = 73945791504. Its totient is φ = 22752551184.

The previous prime is 42661033511. The next prime is 42661033543. The reversal of 42661033515 is 51533016624.

42661033515 is a `hidden beast` number, since 4 + 2 + 6 + 610 + 3 + 35 + 1 + 5 = 666.

It is not a de Polignac number, because 42661033515 - 2² = 42661033511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42661033515.

It is not an unprimeable number, because it can be changed into a prime (42661033511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474011439 + ... + 474011528.

It is an arithmetic number, because the mean of its divisors is an integer number (6162149292).

Almost surely, 2^42661033515 is an apocalyptic number.

42661033515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42661033515 is a deficient number, since it is larger than the sum of its proper divisors (31284757989).

42661033515 is a wasteful number, since it uses less digits than its factorization.

42661033515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948022978 (or 948022975 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 42661033515 in words is "forty-two billion, six hundred sixty-one million, thirty-three thousand, five hundred fifteen".