1550749860000 has 1200 divisors, whose sum is σ = 6584164392960. Its totient is φ = 353756160000.

The previous prime is 1550749859963. The next prime is 1550749860001. The reversal of 1550749860000 is 689470551.

1550749860000 is a `hidden beast` number, since 1 + 550 + 7 + 4 + 98 + 6 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1200).

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

It is not an unprimeable number, because it can be changed into a prime (1550749860001) by changing a digit.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 302937441 + ... + 302942559.

Almost surely, 2^{1550749860000} is an apocalyptic number.

1550749860000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550749860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3292082196480).

1550749860000 is an abundant number, since it is smaller than the sum of its proper divisors (5033414532960).

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

1550749860000 is a wasteful number, since it uses less digits than its factorization.

1550749860000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189 (or 5157 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 1550749860000 in words is "one trillion, five hundred fifty billion, seven hundred forty-nine million, eight hundred sixty thousand".