1501397648416 has 72 divisors (see below), whose sum is σ = 3227211511020. Its totient is φ = 686664470016.

The previous prime is 1501397648407. The next prime is 1501397648419. The reversal of 1501397648416 is 6148467931051.

It can be written as a sum of positive squares in 2 ways, for example, as 1501105238416 + 292410000 = 1225196^2 + 17100^2 .

It is not an unprimeable number, because it can be changed into a prime (1501397648419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1905831 + ... + 2575846.

Almost surely, 2^{1501397648416} is an apocalyptic number.

1501397648416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1501397648416 is an abundant number, since it is smaller than the sum of its proper divisors (1725813862604).

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

1501397648416 is a wasteful number, since it uses less digits than its factorization.

1501397648416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481754 (or 4481727 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 1501397648416 in words is "one trillion, five hundred one billion, three hundred ninety-seven million, six hundred forty-eight thousand, four hundred sixteen".