10645453231550 has 24 divisors (see below), whose sum is σ = 19800775972056. Its totient is φ = 4258131193440.

The previous prime is 10645453231549. The next prime is 10645453231613. The reversal of 10645453231550 is 5513235454601.

It is a happy number.

It is a super-2 number, since 2×10645453231550² (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, 3196217 + ... + 5613083.

It is an arithmetic number, because the mean of its divisors is an integer number (825032332169).

Almost surely, 2^{10645453231550} is an apocalyptic number.

10645453231550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10645453231550 is a deficient number, since it is larger than the sum of its proper divisors (9155322740506).

10645453231550 is a wasteful number, since it uses less digits than its factorization.

10645453231550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504972 (or 2504967 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 10645453231550 in words is "ten trillion, six hundred forty-five billion, four hundred fifty-three million, two hundred thirty-one thousand, five hundred fifty".