1630616671740 has 144 divisors (see below), whose sum is σ = 5324400061344. Its totient is φ = 371782656000.

The previous prime is 1630616671669. The next prime is 1630616671763. The reversal of 1630616671740 is 471766160361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630616671740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 487380 + ... + 1870500.

It is an arithmetic number, because the mean of its divisors is an integer number (36975000426).

Almost surely, 2^{1630616671740} is an apocalyptic number.

1630616671740 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 1630616671740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2662200030672).

1630616671740 is an abundant number, since it is smaller than the sum of its proper divisors (3693783389604).

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

1630616671740 is a wasteful number, since it uses less digits than its factorization.

1630616671740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383548 (or 1383539 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 1630616671740 in words is "one trillion, six hundred thirty billion, six hundred sixteen million, six hundred seventy-one thousand, seven hundred forty".