20315455042634 has 32 divisors (see below), whose sum is σ = 30796065061776. Its totient is φ = 10050241331200.

The previous prime is 20315455042579. The next prime is 20315455042643. The reversal of 20315455042634 is 43624055451302.

It can be written as a sum of positive squares in 8 ways, for example, as 13041090450025 + 7274364592609 = 3611245^2 + 2697103^2 .

It is a super-4 number, since 4×20315455042634⁴ (a number of 54 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3015501314 + ... + 3015508050.

Almost surely, 2^{20315455042634} is an apocalyptic number.

20315455042634 is a deficient number, since it is larger than the sum of its proper divisors (10480610019142).

20315455042634 is a wasteful number, since it uses less digits than its factorization.

20315455042634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890.

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 20315455042634 in words is "twenty trillion, three hundred fifteen billion, four hundred fifty-five million, forty-two thousand, six hundred thirty-four".