1631646351054 has 192 divisors, whose sum is σ = 3807562277376. Its totient is φ = 503735645952.

The previous prime is 1631646351047. The next prime is 1631646351061. The reversal of 1631646351054 is 4501536461361.

1631646351054 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 6 + 4 + 635 + 1 + 0 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1631646351047) and next prime (1631646351061).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1610706652 + ... + 1610707664.

It is an arithmetic number, because the mean of its divisors is an integer number (19831053528).

Almost surely, 2^{1631646351054} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631646351054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1903781138688).

1631646351054 is an abundant number, since it is smaller than the sum of its proper divisors (2175915926322).

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

1631646351054 is a wasteful number, since it uses less digits than its factorization.

1631646351054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 1631646351054 in words is "one trillion, six hundred thirty-one billion, six hundred forty-six million, three hundred fifty-one thousand, fifty-four".