1631141161040 has 20 divisors (see below), whose sum is σ = 3792403199604. Its totient is φ = 652456464384.

The previous prime is 1631141161033. The next prime is 1631141161109. The reversal of 1631141161040 is 401611411361.

It can be written as a sum of positive squares in 2 ways, for example, as 999504061504 + 631637099536 = 999752^2 + 794756^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1631141160994 and 1631141161012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10194632177 + ... + 10194632336.

Almost surely, 2^{1631141161040} is an apocalyptic number.

1631141161040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1631141161040 is an abundant number, since it is smaller than the sum of its proper divisors (2161262038564).

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

1631141161040 is a wasteful number, since it uses less digits than its factorization.

1631141161040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20389264526 (or 20389264520 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1631141161040 in words is "one trillion, six hundred thirty-one billion, one hundred forty-one million, one hundred sixty-one thousand, forty".