511151620156 has 6 divisors (see below), whose sum is σ = 894515335280. Its totient is φ = 255575810076.

The previous prime is 511151620151. The next prime is 511151620157. The reversal of 511151620156 is 651026151115.

It is a super-2 number, since 2×511151620156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511151620151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63893952516 + ... + 63893952523.

Almost surely, 2^511151620156 is an apocalyptic number.

It is an amenable number.

511151620156 is a deficient number, since it is larger than the sum of its proper divisors (383363715124).

511151620156 is a wasteful number, since it uses less digits than its factorization.

511151620156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127787905043 (or 127787905041 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 511151620156 in words is "five hundred eleven billion, one hundred fifty-one million, six hundred twenty thousand, one hundred fifty-six".