11780615506 has 8 divisors (see below), whose sum is σ = 19277370864. Its totient is φ = 5354825220.

The previous prime is 11780615503. The next prime is 11780615507. The reversal of 11780615506 is 60551608711.

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

It is not an unprimeable number, because it can be changed into a prime (11780615501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267741240 + ... + 267741283.

It is an arithmetic number, because the mean of its divisors is an integer number (2409671358).

Almost surely, 2^11780615506 is an apocalyptic number.

11780615506 is a deficient number, since it is larger than the sum of its proper divisors (7496755358).

11780615506 is a wasteful number, since it uses less digits than its factorization.

11780615506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535482536.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 11780615506 in words is "eleven billion, seven hundred eighty million, six hundred fifteen thousand, five hundred six".