1245161066688 has 924 divisors, whose sum is σ = 4667790014160. Its totient is φ = 322587048960.

The previous prime is 1245161066603. The next prime is 1245161066689. The reversal of 1245161066688 is 8866601615421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (924).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1245161066689) by changing a digit.

It is a polite number, since it can be written in 131 ways as a sum of consecutive naturals, for example, 3200927998 + ... + 3200928386.

Almost surely, 2^{1245161066688} is an apocalyptic number.

1245161066688 is a gapful number since it is divisible by the number (18) 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 1245161066688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2333895007080).

1245161066688 is an abundant number, since it is smaller than the sum of its proper divisors (3422628947472).

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

1245161066688 is an frugal number, since it uses more digits than its factorization.

1245161066688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 1245161066688 in words is "one trillion, two hundred forty-five billion, one hundred sixty-one million, sixty-six thousand, six hundred eighty-eight".