400155530606215 has 16 divisors (see below), whose sum is σ = 509183918278272. Its totient is φ = 300848533732864.

The previous prime is 400155530606207. The next prime is 400155530606261. The reversal of 400155530606215 is 512606035551004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 400155530606215 - 2³ = 400155530606207 is a prime.

It is a super-3 number, since 3×400155530606215³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3476834719 + ... + 3476949808.

It is an arithmetic number, because the mean of its divisors is an integer number (31823994892392).

Almost surely, 2^{400155530606215} is an apocalyptic number.

400155530606215 is a deficient number, since it is larger than the sum of its proper divisors (109028387672057).

400155530606215 is a wasteful number, since it uses less digits than its factorization.

400155530606215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953785226.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 400155530606215 in words is "four hundred trillion, one hundred fifty-five billion, five hundred thirty million, six hundred six thousand, two hundred fifteen".