11315533450 has 24 divisors (see below), whose sum is σ = 22665885228. Its totient is φ = 4178042880.

The previous prime is 11315533447. The next prime is 11315533501. The reversal of 11315533450 is 5433551311.

It can be written as a sum of positive squares in 6 ways, for example, as 248283049 + 11067250401 = 15757^2 + 105201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8703607 + ... + 8704906.

Almost surely, 2^11315533450 is an apocalyptic number.

11315533450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11315533450 is an abundant number, since it is smaller than the sum of its proper divisors (11350351778).

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

11315533450 is a wasteful number, since it uses less digits than its factorization.

11315533450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17408538 (or 17408533 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 11315533450 in words is "eleven billion, three hundred fifteen million, five hundred thirty-three thousand, four hundred fifty".