20310145033516 has 24 divisors (see below), whose sum is σ = 40291380837680. Its totient is φ = 8880549244992.

The previous prime is 20310145033487. The next prime is 20310145033523. The reversal of 20310145033516 is 61533054101302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10278412491 + ... + 10278414466.

Almost surely, 2^{20310145033516} is an apocalyptic number.

20310145033516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20310145033516 is a deficient number, since it is larger than the sum of its proper divisors (19981235804164).

20310145033516 is a wasteful number, since it uses less digits than its factorization.

20310145033516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556826993 (or 20556826991 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 20310145033516 its reverse (61533054101302), we get a palindrome (81843199134818).

The spelling of 20310145033516 in words is "twenty trillion, three hundred ten billion, one hundred forty-five million, thirty-three thousand, five hundred sixteen".