1345061622640 has 320 divisors, whose sum is σ = 3450574899072. Its totient is φ = 485543116800.

The previous prime is 1345061622607. The next prime is 1345061622647. The reversal of 1345061622640 is 462261605431.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1345061622593 and 1345061622602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345061622647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1998605344 + ... + 1998606016.

Almost surely, 2^{1345061622640} is an apocalyptic number.

1345061622640 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 1345061622640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725287449536).

1345061622640 is an abundant number, since it is smaller than the sum of its proper divisors (2105513276432).

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

1345061622640 is a wasteful number, since it uses less digits than its factorization.

1345061622640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 1345061622640 in words is "one trillion, three hundred forty-five billion, sixty-one million, six hundred twenty-two thousand, six hundred forty".