1671995248550 has 144 divisors (see below), whose sum is σ = 3456203372160. Its totient is φ = 601283865600.

The previous prime is 1671995248531. The next prime is 1671995248589. The reversal of 1671995248550 is 558425991761.

It is a super-2 number, since 2×1671995248550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 400284062 + ... + 400288238.

Almost surely, 2^{1671995248550} is an apocalyptic number.

1671995248550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1671995248550 is an abundant number, since it is smaller than the sum of its proper divisors (1784208123610).

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

1671995248550 is a wasteful number, since it uses less digits than its factorization.

1671995248550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927 (or 4911 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 62.

The spelling of 1671995248550 in words is "one trillion, six hundred seventy-one billion, nine hundred ninety-five million, two hundred forty-eight thousand, five hundred fifty".