181102220673400 has 48 divisors (see below), whose sum is σ = 453452098692600. Its totient is φ = 66868512247680.

The previous prime is 181102220673383. The next prime is 181102220673529. The reversal of 181102220673400 is 4376022201181.

It is a self number, because there is not a number n which added to its sum of digits gives 181102220673400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34827347530 + ... + 34827352729.

Almost surely, 2^{181102220673400} is an apocalyptic number.

181102220673400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181102220673400 is an abundant number, since it is smaller than the sum of its proper divisors (272349878019200).

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

181102220673400 is a wasteful number, since it uses less digits than its factorization.

181102220673400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69654700288 (or 69654700279 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 181102220673400 its reverse (4376022201181), we get a palindrome (185478242874581).

The spelling of 181102220673400 in words is "one hundred eighty-one trillion, one hundred two billion, two hundred twenty million, six hundred seventy-three thousand, four hundred".