1056542663450 has 24 divisors (see below), whose sum is σ = 1984626485820. Its totient is φ = 418432736000.

The previous prime is 1056542663447. The next prime is 1056542663459. The reversal of 1056542663450 is 543662456501.

It can be written as a sum of positive squares in 6 ways, for example, as 766449471841 + 290093191609 = 875471^2 + 538603^2 .

It is a super-2 number, since 2×1056542663450² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1056542663395 and 1056542663404.

It is not an unprimeable number, because it can be changed into a prime (1056542663459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104603135 + ... + 104613234.

Almost surely, 2^{1056542663450} is an apocalyptic number.

1056542663450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056542663450 is a deficient number, since it is larger than the sum of its proper divisors (928083822370).

1056542663450 is a wasteful number, since it uses less digits than its factorization.

1056542663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209216482 (or 209216477 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 1056542663450 in words is "one trillion, fifty-six billion, five hundred forty-two million, six hundred sixty-three thousand, four hundred fifty".