20450156113654 has 4 divisors (see below), whose sum is σ = 30675234170484. Its totient is φ = 10225078056826.

The previous prime is 20450156113633. The next prime is 20450156113663. The reversal of 20450156113654 is 45631165105402.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20450156113654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5112539028412 + ... + 5112539028415.

It is an arithmetic number, because the mean of its divisors is an integer number (7668808542621).

Almost surely, 2^{20450156113654} is an apocalyptic number.

20450156113654 is a deficient number, since it is larger than the sum of its proper divisors (10225078056830).

20450156113654 is a wasteful number, since it uses less digits than its factorization.

20450156113654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225078056829.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 20450156113654 in words is "twenty trillion, four hundred fifty billion, one hundred fifty-six million, one hundred thirteen thousand, six hundred fifty-four".