157505242072005 has 24 divisors (see below), whose sum is σ = 276854284661760. Its totient is φ = 82819657801440.

The previous prime is 157505242071973. The next prime is 157505242072037. The reversal of 157505242072005 is 500270242505751.

157505242072005 is a `hidden beast` number, since 1 + 5 + 7 + 50 + 524 + 2 + 0 + 72 + 0 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (157505242071973) and next prime (157505242072037).

It is not a de Polignac number, because 157505242072005 - 2⁵ = 157505242071973 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24648704485 + ... + 24648710874.

It is an arithmetic number, because the mean of its divisors is an integer number (11535595194240).

Almost surely, 2^{157505242072005} is an apocalyptic number.

157505242072005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157505242072005 is a deficient number, since it is larger than the sum of its proper divisors (119349042589755).

157505242072005 is a wasteful number, since it uses less digits than its factorization.

157505242072005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49297415441 (or 49297415438 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 45.

Adding to 157505242072005 its reverse (500270242505751), we get a palindrome (657775484577756).

The spelling of 157505242072005 in words is "one hundred fifty-seven trillion, five hundred five billion, two hundred forty-two million, seventy-two thousand, five".