51151000655100 has 72 divisors (see below), whose sum is σ = 148028529317760. Its totient is φ = 13637351257280.

The previous prime is 51151000655093. The next prime is 51151000655137. The reversal of 51151000655100 is 155600015115.

51151000655100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16816362 + ... + 19623761.

It is an arithmetic number, because the mean of its divisors is an integer number (2055951796080).

Almost surely, 2^{51151000655100} is an apocalyptic number.

51151000655100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51151000655100 is an abundant number, since it is smaller than the sum of its proper divisors (96877528662660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51151000655100 is a wasteful number, since it uses less digits than its factorization.

51151000655100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36444819 (or 36444812 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 51151000655100 in words is "fifty-one trillion, one hundred fifty-one billion, six hundred fifty-five thousand, one hundred".