511215105113255 has 8 divisors (see below), whose sum is σ = 617935922677872. Its totient is φ = 405986886395968.

The previous prime is 511215105113227. The next prime is 511215105113269. The reversal of 511215105113255 is 552311501512115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 511215105113255 - 2¹⁸ = 511215104851111 is a prime.

It is a super-2 number, since 2×511215105113255² (a number of 30 digits) contains 22 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 7 ways as a sum of consecutive naturals, for example, 373149711077 + ... + 373149712446.

It is an arithmetic number, because the mean of its divisors is an integer number (77241990334734).

Almost surely, 2^{511215105113255} is an apocalyptic number.

511215105113255 is a deficient number, since it is larger than the sum of its proper divisors (106720817564617).

511215105113255 is a wasteful number, since it uses less digits than its factorization.

511215105113255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746299423665.

The product of its (nonzero) digits is 37500, while the sum is 38.

The spelling of 511215105113255 in words is "five hundred eleven trillion, two hundred fifteen billion, one hundred five million, one hundred thirteen thousand, two hundred fifty-five".