5515011151650 has 1152 divisors, whose sum is σ = 21321651326976. Its totient is φ = 984416716800.

The previous prime is 5515011151607. The next prime is 5515011151669. The reversal of 5515011151650 is 561511105155.

5515011151650 is a `hidden beast` number, since 5 + 51 + 501 + 1 + 1 + 51 + 6 + 50 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 383325757 + ... + 383340143.

It is an arithmetic number, because the mean of its divisors is an integer number (18508377888).

Almost surely, 2^{5515011151650} is an apocalyptic number.

5515011151650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5515011151650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10660825663488).

5515011151650 is an abundant number, since it is smaller than the sum of its proper divisors (15806640175326).

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

5515011151650 is a wasteful number, since it uses less digits than its factorization.

5515011151650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14496 (or 14488 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

It can be divided in two parts, 5515011 and 151650, that added together give a triangular number (5666661 = T₃₃₆₆).

The spelling of 5515011151650 in words is "five trillion, five hundred fifteen billion, eleven million, one hundred fifty-one thousand, six hundred fifty".