1655254041405 has 32 divisors (see below), whose sum is σ = 2651926155264. Its totient is φ = 881629340736.

The previous prime is 1655254041359. The next prime is 1655254041439. The reversal of 1655254041405 is 5041404525561.

It is a happy number.

It is not a de Polignac number, because 1655254041405 - 2¹⁸ = 1655253779261 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90824124 + ... + 90842346.

It is an arithmetic number, because the mean of its divisors is an integer number (82872692352).

Almost surely, 2^{1655254041405} is an apocalyptic number.

1655254041405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1655254041405 is a deficient number, since it is larger than the sum of its proper divisors (996672113859).

1655254041405 is a wasteful number, since it uses less digits than its factorization.

1655254041405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25945.

The product of its (nonzero) digits is 480000, while the sum is 42.

Adding to 1655254041405 its reverse (5041404525561), we get a palindrome (6696658566966).

The spelling of 1655254041405 in words is "one trillion, six hundred fifty-five billion, two hundred fifty-four million, forty-one thousand, four hundred five".