20136426730155 has 48 divisors (see below), whose sum is σ = 35145778247424. Its totient is φ = 10664816097600.

The previous prime is 20136426730127. The next prime is 20136426730171. The reversal of 20136426730155 is 55103762463102.

20136426730155 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 6 + 426 + 73 + 0 + 155 = 666.

It is not a de Polignac number, because 20136426730155 - 2⁸ = 20136426729899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20136426730155.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20357152 + ... + 21323378.

It is an arithmetic number, because the mean of its divisors is an integer number (732203713488).

Almost surely, 2^{20136426730155} is an apocalyptic number.

20136426730155 is a deficient number, since it is larger than the sum of its proper divisors (15009351517269).

20136426730155 is a wasteful number, since it uses less digits than its factorization.

20136426730155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969456 (or 969453 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 20136426730155 in words is "twenty trillion, one hundred thirty-six billion, four hundred twenty-six million, seven hundred thirty thousand, one hundred fifty-five".