1061099378450 has 48 divisors (see below), whose sum is σ = 1994946836064. Its totient is φ = 419862873600.

The previous prime is 1061099378429. The next prime is 1061099378453. The reversal of 1061099378450 is 548739901601.

It is a super-2 number, since 2×1061099378450² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1061099378392 and 1061099378401.

It is not an unprimeable number, because it can be changed into a prime (1061099378453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10284017 + ... + 10386683.

It is an arithmetic number, because the mean of its divisors is an integer number (41561392418).

Almost surely, 2^{1061099378450} is an apocalyptic number.

1061099378450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1061099378450 is a deficient number, since it is larger than the sum of its proper divisors (933847457614).

1061099378450 is a wasteful number, since it uses less digits than its factorization.

1061099378450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104907 (or 104902 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 1061099378450 in words is "one trillion, sixty-one billion, ninety-nine million, three hundred seventy-eight thousand, four hundred fifty".