11051631620240 has 20 divisors (see below), whose sum is σ = 25695043517244. Its totient is φ = 4420652648064.

The previous prime is 11051631620137. The next prime is 11051631620251. The reversal of 11051631620240 is 4202613615011.

It can be written as a sum of positive squares in 2 ways, for example, as 1815551435776 + 9236080184464 = 1347424^2 + 3039092^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×11051631620240² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11051631620197 and 11051631620206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69072697547 + ... + 69072697706.

Almost surely, 2^{11051631620240} is an apocalyptic number.

11051631620240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11051631620240 is an abundant number, since it is smaller than the sum of its proper divisors (14643411897004).

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

11051631620240 is a wasteful number, since it uses less digits than its factorization.

11051631620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138145395266 (or 138145395260 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 11051631620240 in words is "eleven trillion, fifty-one billion, six hundred thirty-one million, six hundred twenty thousand, two hundred forty".