10621999061244 has 36 divisors (see below), whose sum is σ = 27027868118160. Its totient is φ = 3517218230400.

The previous prime is 10621999061221. The next prime is 10621999061257. The reversal of 10621999061244 is 44216099912601.

10621999061244 is a `hidden beast` number, since 1 + 0 + 6 + 2 + 19 + 9 + 9 + 0 + 612 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10621999061244² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 976999629 + ... + 977010500.

Almost surely, 2^{10621999061244} is an apocalyptic number.

It is an amenable number.

10621999061244 is an abundant number, since it is smaller than the sum of its proper divisors (16405869056916).

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

10621999061244 is a wasteful number, since it uses less digits than its factorization.

10621999061244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954010290 (or 1954010285 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 10621999061244 in words is "ten trillion, six hundred twenty-one billion, nine hundred ninety-nine million, sixty-one thousand, two hundred forty-four".