515051155000 has 40 divisors (see below), whose sum is σ = 1206764867880. Its totient is φ = 206020460000.

The previous prime is 515051154953. The next prime is 515051155001. The reversal of 515051155000 is 551150515.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 515051155000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515051155001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51500116 + ... + 51510115.

It is an arithmetic number, because the mean of its divisors is an integer number (30169121697).

Almost surely, 2^515051155000 is an apocalyptic number.

515051155000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

515051155000 is an abundant number, since it is smaller than the sum of its proper divisors (691713712880).

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

515051155000 is a wasteful number, since it uses less digits than its factorization.

515051155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103010257 (or 103010238 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 515051155000 in words is "five hundred fifteen billion, fifty-one million, one hundred fifty-five thousand".