620152766155 has 12 divisors (see below), whose sum is σ = 805831642800. Its totient is φ = 457958965152.

The previous prime is 620152766153. The next prime is 620152766173. The reversal of 620152766155 is 551667251026.

It is not a de Polignac number, because 620152766155 - 2¹ = 620152766153 is a prime.

It is a super-2 number, since 2×620152766155² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620152766153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366953455 + ... + 366955144.

It is an arithmetic number, because the mean of its divisors is an integer number (67152636900).

Almost surely, 2^620152766155 is an apocalyptic number.

620152766155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

620152766155 is a deficient number, since it is larger than the sum of its proper divisors (185678876645).

620152766155 is a wasteful number, since it uses less digits than its factorization.

620152766155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733908630 (or 733908617 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 620152766155 in words is "six hundred twenty billion, one hundred fifty-two million, seven hundred sixty-six thousand, one hundred fifty-five".