20455353464612 has 36 divisors (see below), whose sum is σ = 39357348338028. Its totient is φ = 9295435776000.

The previous prime is 20455353464569. The next prime is 20455353464629. The reversal of 20455353464612 is 21646435355402.

It can be written as a sum of positive squares in 2 ways, for example, as 9365227990756 + 11090125473856 = 3060266^2 + 3330184^2 .

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, 3735389 + ... + 7407012.

Almost surely, 2^{20455353464612} is an apocalyptic number.

20455353464612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20455353464612 is a deficient number, since it is larger than the sum of its proper divisors (18901994873416).

20455353464612 is a wasteful number, since it uses less digits than its factorization.

20455353464612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146220 (or 11146207 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 20455353464612 in words is "twenty trillion, four hundred fifty-five billion, three hundred fifty-three million, four hundred sixty-four thousand, six hundred twelve".