20526146142145 has 16 divisors (see below), whose sum is σ = 29374062554880. Its totient is φ = 13463112003264.

The previous prime is 20526146142077. The next prime is 20526146142223. The reversal of 20526146142145 is 54124164162502.

It is not a de Polignac number, because 20526146142145 - 2¹⁵ = 20526146109377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12749158290 + ... + 12749159899.

It is an arithmetic number, because the mean of its divisors is an integer number (1835878909680).

Almost surely, 2^{20526146142145} is an apocalyptic number.

It is an amenable number.

20526146142145 is a deficient number, since it is larger than the sum of its proper divisors (8847916412735).

20526146142145 is a wasteful number, since it uses less digits than its factorization.

20526146142145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25498318224.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 20526146142145 in words is "twenty trillion, five hundred twenty-six billion, one hundred forty-six million, one hundred forty-two thousand, one hundred forty-five".