10961504550 has 48 divisors (see below), whose sum is σ = 30205038480. Its totient is φ = 2923067520.

The previous prime is 10961504539. The next prime is 10961504569. The reversal of 10961504550 is 5540516901.

10961504550 is a `hidden beast` number, since 1 + 0 + 96 + 15 + 0 + 4 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4058467 + ... + 4061166.

It is an arithmetic number, because the mean of its divisors is an integer number (629271635).

Almost surely, 2^10961504550 is an apocalyptic number.

10961504550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10961504550 is an abundant number, since it is smaller than the sum of its proper divisors (19243533930).

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

10961504550 is a wasteful number, since it uses less digits than its factorization.

10961504550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119654 (or 8119643 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 10961504550 in words is "ten billion, nine hundred sixty-one million, five hundred four thousand, five hundred fifty".