1065150721500 has 96 divisors (see below), whose sum is σ = 3121475762496. Its totient is φ = 282230956800.

The previous prime is 1065150721493. The next prime is 1065150721507. The reversal of 1065150721500 is 51270515601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1065150721493) and next prime (1065150721507).

It is a super-2 number, since 2×1065150721500² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065150721507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2025967 + ... + 2496966.

It is an arithmetic number, because the mean of its divisors is an integer number (32515372526).

Almost surely, 2^{1065150721500} is an apocalyptic number.

1065150721500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065150721500 is an abundant number, since it is smaller than the sum of its proper divisors (2056325040996).

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

1065150721500 is a wasteful number, since it uses less digits than its factorization.

1065150721500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523112 (or 4523100 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 1065150721500 in words is "one trillion, sixty-five billion, one hundred fifty million, seven hundred twenty-one thousand, five hundred".