1655123473400 has 48 divisors (see below), whose sum is σ = 3854925367200. Its totient is φ = 660885812480.

The previous prime is 1655123473379. The next prime is 1655123473433. The reversal of 1655123473400 is 43743215561.

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, 7158272 + ... + 7385871.

It is an arithmetic number, because the mean of its divisors is an integer number (80310945150).

Almost surely, 2^{1655123473400} is an apocalyptic number.

1655123473400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1655123473400 is an abundant number, since it is smaller than the sum of its proper divisors (2199801893800).

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

1655123473400 is a wasteful number, since it uses less digits than its factorization.

1655123473400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14544728 (or 14544719 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

Adding to 1655123473400 its reverse (43743215561), we get a palindrome (1698866688961).

The spelling of 1655123473400 in words is "one trillion, six hundred fifty-five billion, one hundred twenty-three million, four hundred seventy-three thousand, four hundred".